564474f891b8da92851e93c2dfaeb67274abd69b6498ada12665a72fe00e69de

Analysis

max time kernel
117s
max time network
124s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
05-09-2024 10:04

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General

Target

chrome_200_percent.pak
Size

175KB
MD5

48515d600258d60019c6b9c6421f79f6
SHA1

0ef0b44641d38327a360aa6954b3b6e5aab2af16
SHA256

07bee34e189fe9a8789aed78ea59ad41414b6e611e7d74da62f8e6ca36af01ce
SHA512

b7266bc8abc55bd389f594dac0c0641ecf07703f35d769b87e731b5fdf4353316d44f3782a4329b3f0e260dead6b114426ddb1b0fb8cd4a51e0b90635f1191d9
SSDEEP

3072:rDQYaEQN6AJPrSxQCS/qGTafR54x5GMR+F44ffbdZnYw9p4AbIVGYoDd+HxNK/r4:rDQYaNN68rC4/Ygx5GMRejnbdZnVE6YR

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2712	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2712	AcroRd32.exe
2712	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 2284	2492	cmd.exe	31
PID 2492 wrote to memory of 2284	2492	cmd.exe	31
PID 2492 wrote to memory of 2284	2492	cmd.exe	31
PID 2284 wrote to memory of 2712	2284	rundll32.exe	32
PID 2284 wrote to memory of 2712	2284	rundll32.exe	32
PID 2284 wrote to memory of 2712	2284	rundll32.exe	32
PID 2284 wrote to memory of 2712	2284	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\chrome_200_percent.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\chrome_200_percent.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2284
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\chrome_200_percent.pak"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2712

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
e9fead78e88ddb5f31bb0cc7c6bc3ba0

SHA1
ec8f389a77f95789bbedbc1832c5bc6fb0c25ccf

SHA256
18f88e89b47c3a4805827bd2b2a5894a1ea26735e071c661da9be6f1d8b905a8

SHA512
9bf8bb3ff065f038236c9fe69209231fbe64238ad5f1e7a2c8d01d384af9b6d593ca847c3f3ca1e92777b80ac2dbb1aae8bfad1050b145e826fe6b6177b2b7f0

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